Planning applications in Welwyn Hatfield, September 2026

The Depot Bullens Green Lane Colney Heath AL4 0QR

Erection of 9 dwellings with associated access, car parking and landscaping following the demolition of existing structures and storage use

64 Holwell Road Welwyn Garden City AL7 3RN

Silver Maple tree to fell

6 Meadow Green Welwyn Garden City AL8 6SS

Erection of first floor side extension and alterations to rear window

33 Digswell Road Welwyn Garden City AL8 7PB

Removal of cypress hedge and hawthorn tree

16 Northaw Road West Northaw EN6 4NR

(T1) Hazel – Reduce the height and lateral spread by approx 1.5–2m, pruning back to the previous pruning points where appropriate (T2) Yew – Reduce the height and lateral spread by approx 0.5m, growth encroaching over the pathway

5 Brookside Crescent Cuffley Potters Bar EN6 4QW

Submission of details pursuant to Condition 1 (Arboricultural Method Statement and Tree Protection Plan) on planning permission 6/2026/1011/HOUSE

16 Mardley Avenue Welwyn AL6 0UD

Proposed loft conversion, enlargement of the existing roof with increase in ridge height to form a truncated hipped roof, installation of two front dormers, a rear dormer with a rear balcony, and associated rooflights

Park close Park street Old Hatfield

5 Lime trees (T4-8)- re pollard back to previous pruning points. Approximately 8-10 feet of growth to be removed T10- Lawson Cypress- this tree is dead, remove to ground level T 16 & 18- Sycamore- ivy growing through crown. Sever ivy stems close to ground level

6 Ashley Close Welwyn Garden City AL8 7LH

Erection of garden room and decking

83 Brookmans Avenue Brookmans Park AL9 7QG

Submission of details pursuant to condition number 1 (Demolition and Construction Management Plan) on planning permission 6/2026/0138/FULL

180 Heronswood Road Welwyn Garden City AL7 3EU

Change of use of the front part of the site from general amenity land to private driveway to accommodate parking for one vehicle, with the remaining land being retained as open plan garden, front driveway alterations, insertion of EV charger, erection of glazed pergola to rear, and alterations to side openings

1 Brookside Crescent Cuffley Potters Bar EN6 4QW

Retrospective consent for erection of summerhouse and block paving to front of property

28 Pleasant Rise Hatfield AL9 5DU

Certificate of lawfulness for construction of a new detached, single-storey garden room/summerhouse within an existing rear garden

50 Heron Way Hatfield AL10 8QX

Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3m in height and 3m to the eaves

64 Holwell Road Welwyn Garden City AL7 3RN

Remove 1 x silver maple tree

Land and highway access at the north end of Bradmore Way

Certificate of lawfulness for the replacement of an existing gate and fence

73 Mymms Drive Brookmans Park AL9 7AA

Erection of dwelling following demolition of existing dwelling

28 Parkfields Welwyn Garden City AL8 6ED

1 x Weeping Birch to reduce height by approximately 1.5m and width

58 Bell Lane Brookmans Park AL9 7AY

Submission of details pursuant to condition number 5 (energy statement) on planning permission 6/2025/2133/FULL

33 Digswell Road Welwyn Garden City AL8 7PB

T1. Hawthorn - Cut to ground level

3 Scholars Mews Welwyn Garden City AL8 7JQ

Erection of freestanding aluminium garden pergola

38 New Road Digswell Welwyn AL6 0AH

Submission of details pursuant to Condition 1 (Construction Traffic Management Plan) on planning permission 6/2023/2483/FULL

28 Parkfields Welwyn Garden City AL8 6ED

1 x Weeping Birch to reduce height by approx 1.5m and width

Land to the north east of King George V Playing Fields Northaw Road East Hertfordshire EN6 4RD

Submission of details pursuant of condition 3 (hard and soft landscaping), condition 13 (Arboricultural Method) on planning permission 6/2026/0126/MAJ

The Doctors Tonic Church Road Welwyn Garden City AL8 6PR

1 x Red Oak to reduce to leave a standing stem of around 6m above ground level

3 Longlands Road Welwyn Garden City AL7 3QD

Proposed garden room with a canopy

Land south of Welham Manor and west of Station Road, including 26 Station Road Welham Green AL9 7EL

Submission of details pursuant to Condition 15 (Fire Hydrants) on planning permission 6/2024/2418/MAJ

Chine House Wild Hill Hatfield AL9 6EB

Ground works and associated root pruning/ severance of T3 (Oak) and other trees not advised to be the subject of a TPO to facilitate installation of a root barrier 66m in length and 4m in depth TPO 580 (2016)

24A Northaw Road West Northaw EN6 4NR

Erection of a part single part two storey rear and side extension, loft conversion with rear dormer

Home Wood, rear of 40 The Ridgeway

5 day notice of the removal of a dead and diseased tree (TPO3 W35)

9 Hill Rise Cuffley Potters Bar EN6 4ED

Submission of details pursuant to Condition 1 (samples of materials) on planning permission 6/2025/2262/HOUSE

37-39 Bradmore Green Brookmans Park AL9 7QR

Remove old signage & replace with new

37 The Ridgeway Cuffley EN6 4BB

T1 English Oak (Quercus robur) ref T316 fell to ground level

St Andrews Care Home Great North Road Welwyn Garden City AL8 7SR

Erection of 287 solar panels on the south, east and west facing roof slopes of the care home covering an array total area of 560 sqm

93 The Commons Welwyn Garden City AL7 4RZ

Erection of single storey rear extension

Land at Hollybush Lane to the east of A1000 and north of Ascots Lane Welwyn Garden City AL7 4EG

Submission of details pursuant to condition numbers 5 (surface water drainage scheme), 6 (contamination remediation strategy), 7 (contamination monitoring and maintenance plan), 8 (ground investigation), 9 (borehole management scheme), 10 (ecological enhancements) on planning permission 6/2025/1024/RM

32 Turpins Chase Welwyn AL6 0RR

Erection of a single storey side extension and a new garage on ground floor level, conversion of the existing garage and installation of an air source heat pump

Land at Hollybush Lane to the east of A1000 and north of Ascots Lane Welwyn Garden City AL7 4EG

Submission of details pursuant to condition numbers 1 (Construction Environmental Management Plan), 2 (Arboricultural Method Statement and Tree Protection Plan), 3 (Construction Method Statement - Phase 2 only) and 4 (Site Waste Management Plan) on planning permission 6/2025/1024/RM

5 Hitherway Welwyn Garden City AL8 7RG

4 x Whitebeams to fell. No replanting